Considering G37 Purchase

A general discussion forum for G35 and G37 owners and a great place to introduce yourself to the NICOclub G-Series Forums!
rob51l
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Joined: Mon Oct 15, 2007 7:10 am
Car: 2002 Jetta

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Hi. I am very new to the forum. Until recently, I was considering the purchase of a 2008 BMW 328i coupe. While visiting a BMW dealer, I noticed that all of the paint jobs have an "orange peel" appearance. It is a minor thing, but it bothers me. I started to look around for comparable vehicles and discovered the G37. I have not looked up close, but it appears to be a lot more car for even less money. Can anyone tell me about the paint finishes on the Infinitis? Do they also have this orange peel finish? Any and all other opinions will be very helpful. Thanks.


UX149
Posts: 15
Joined: Sun Aug 12, 2007 9:10 pm

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Yes, the G37 definitely has an orange peel finish. We looked at about two dozen before we bought a black one for my wife, and one of the things that disappointed me about the cars was the finish. It is especially apparent in black, and is most visible in the shade or garage. My current 300C, prior S-Type, and my wife's prior Lexus all had significantly smoother paint finishes. She and I also like metal flake in the black paint of my 300C.

Eticket
Posts: 22
Joined: Wed May 17, 2006 8:15 pm
Car: 08 G37s premium, nav, spoiler 02 Altima 3.5 SE 18's, lowered, shocks, struts, swaybars, intake

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UX149...interesting..I have graphite and no orange peel..??Anyone else have that condition?

sahiwal007
Posts: 2
Joined: Mon Sep 10, 2007 11:15 am

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hey whats orange peel by the way? and how can i find it if i have it?

rob51l
Posts: 6
Joined: Mon Oct 15, 2007 7:10 am
Car: 2002 Jetta

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Hi. It is the subtle texture in the finish. If you look at the paint job in the right light you can see a faint appearance in the finish that resembles the texture of an orange peel. There is nothing wrong with the finish, it just does not appear perfectly smooth. It is smooth to the touch and more or less noticeable depending on the color. Often, when a car has been repainted, there are very faint swirl marks. You really have to look to see them. Thanks,Bob

dmkozak
Posts: 70
Joined: Mon Mar 19, 2007 9:59 am

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rob51l wrote:Hi. It is the subtle texture in the finish. If you look at the paint job in the right light you can see a faint appearance in the finish that resembles the texture of an orange peel. There is nothing wrong with the finish, it just does not appear perfectly smooth. It is smooth to the touch and more or less noticeable depending on the color. Often, when a car has been repainted, there are very faint swirl marks. You really have to look to see them. Thanks,Bob
I have found complaints of factory orange peel to be quite confusing for the past 15 - 20 years, because all manufacturers switched to dipping cars (not spraying them) and using water based paints. These changes make orange peel virturally impossible. Even your comment about re-painting is confusing because re-painting will be done by spraying, not dipping. Personally, I am at a loss how these cars could have orange peel.

rob51l
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Joined: Mon Oct 15, 2007 7:10 am
Car: 2002 Jetta

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My comment about repainting was generally referring to repair work. The orange peel appearance is pretty obvious on many new cars. Thanks for your comments.

dmkozak
Posts: 70
Joined: Mon Mar 19, 2007 9:59 am

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And, while I assume you have eyes and can see for yourself, my comment about your comment was, basically, anyone who might compare "orange peel" from a sprayed on paint job to "orange peel" from a dipped paint job really does not understand the differences in application or paint drying between the two. If you are seeing the same "orange peel" in the two very different types of paint jobs, then your experience and knowledge in the field of automotive painting might use some improvement.

P.S. I have spent over 35 years in the automotive design and development industry and I am always suprised how little I have managed to learn and how much internet posters without any formal training or industry experience know.

P.P.S. Maybe your subconcious comment that I mind my own business and allow people to continue forward in their fields of little knowledge is correct. I will endeavor to answer questions and not point out a poster's lack of knowledge or experience.

rob51l
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Car: 2002 Jetta

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Modified by rob51l at 6:04 AM 10/18/2007

Ben98gs
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Joined: Thu Oct 18, 2007 3:22 am
Car: 1998 Buick Regal GS
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You sir... have no idea what you are talking about. Go spread your "35 yrs" in the auto industry to the Civic forums where you can mislead the little kids.

The ONLY part of the painting process that uses "dipping tanks" is the primer. The galvanized body is dipped in a phosphate solution and then dipped in a tank of paint/primer. The vehicle is then SPRAYED with another layer of primer to help with rock chips. It is then SPRAYED electostatically with paint (they charge the body with a negative charge and the paint with a positive charge, and then spray, the ions in the body and paint cause the paint to be "sucked" to the body and ensure a more efficient and even coat). The base coat is then allowed to sit in a special booth to help get the solvents out of the paint for about 5 min and then goes to clear coat. Which is again SPRAYED. This clearcoat layer is where all of your orange peel will come from.

I highly doubt that there are ANY manufacurers that "dip" paint. If they did, they would need a tank of over 100,000 gallons of paint for EACH color. If manufacturers did this then you would only have the option of 2-3 colors because they could not feasibly build a facility big enough to house the 10+ tanks for the different paint colors.

So get off your pedestal and dont talk about things you do not know about.

And just so you know that I am not talking outta my *** like you, here is a quote on the automobile painting process:

Quote »The paint shop is where the truck is cleaned, primed and painted in a series of four steps that are highly automated, efficient and environmentally friendly: cleaning and electroplating, sealing, priming and painting.

The paint shop is a very clean environment. No dust, lint or any kind of particle can land on the truck body, because it would ruin the finish. Workers wear special lint-free coveralls and hairnets. Even the robots are wrapped in protective cloth.

In the paint shop, even robots are wrapped in cloth for protection. The truck is washed and then immersed in a series of phosphate baths that clean, etch and coat the metal. The “dip” tank contains 100,000 gallons of paint charged with 300 volts of electricity. This electrical charge causes the chemicals to stick to the metal with less waste, in a process called electroplating. The first coating is baked on and then the vehicle is moved to the next painting stage.

At this point, robots mounted with giant caulking guns swing in and seal cracks and crevices for a watertight fit. Workers add sealant to places the robots can’t caulk. Paint booth robots precisely spray another layer of primer paint. The primer protects the truck’s finish from stone chips.

The trucks are inspected before the final layers of paint are applied. Then robots apply a coat that contains the color. The paint is sprayed onto the truck in a fine mist electro- statically charged with up to 90,000 volts of electricity, which allows the paint to stick to the metal, again, with high accuracy and very little waste. Next a clear coat is applied, which makes the paint shiny. Then the truck rolls by conveyor into a special oven that bakes or “cures” the paint for 30 minutes.

The entire process, from dip tank to curing, takes several hours to complete. Finally the truck is checked very carefully by hand for any flaws.

[/quote]And a video where you can watch the process step by step and take notice at all the SPRAYING that goes on:

GM Truck Paint Process

Ben98gs
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And dont try and pull that "it is GM and that is why it is sprayed" stuff either... (I highlighted the good parts for you).

Here is an exert about the painting process on the new BMW M6:

Quote »The BMW M6, despite its wide range of different body materials, goes through all the usual processes in applying the paintwork. The first step is to remove grease from the body by pre-treatment in a rotation dip bath, after which the body is cleaned and covered by a layer of zinc phosphate forming the foundation for the paint layers to follow next. Then the phosphated body- shells are covered by a layer of anti-corrosive paint in the cathodic dip bath (CDP) and are dried at 180 °C. The second layer of paint, a filler already matching the subsequent topcoat, is subsequently applied by high-speed rotation sprayers. This forms the foundation for the next layer of water-based paint applied on a special paint line in order to give the car its actual body colour. In this process a highly flexible paint supply system able to work with very small quantities of paint serves to apply the four exclusive M colours as well as the overall range of approximately 250 individual colours, ensuring excellent quality throughout the entire process. After the body has been dried in an intermediate dryer at a temperature of 70 °C the clear powder paint applied in conclusion gives the surface a beautiful glossy finish and adds the right kind of protection.



The Paintshop in Dingolfing uses a number of innovative concepts for the specific combination of materials on the BMW 6 Series. Thanks to flexible production management, for example, the SMC components – such as the rear lid – can be fitted right from the start in the Bodyshop and remain on the car throughout the entire painting process. The thermoplastic side panels, in turn, are the first skin segments of the body which go through the entire process of applying the paint right from the start, thus setting off the varying degree of thermal elongation of plastics and the aluminium front section during the subsequent drying process, since automatic recognition of materials enables the topcoat dryers to adjust their temperature within a few seconds.



An efficient and highly innovative process of colour-matching measures the colours on the body work online, ensuring perfect harmony of colours on both the body and on individual add-on parts such as the bumpers, side-sills or rear-view mirrors. [/quote]Hmm.... 250 individual colours that can be controlled. Something tells me that is not by 250 different "dip tanks"....

Ben98gs
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Was trying to find you detailed information on Infiniti/Nissan, but this is the best that I could do:

Quote »Nissan North America's factories in Smyrna, TN (pictured above) and Canton, MS recently received an Energy Star Award from the Environmental Protection Agency, becoming only the third car-maker to get the award. One of Nissan's aims was to reduce VOC (volatile organic compounds) emissions by using water borne paints in both the primer and color/clear coat paint operations in Canton and one of the two paint shops in Smyrna. They have also moved to doing batch painting operations where a series of bodies in a given color are painted before switching to another color to paint another batch. This helps minimize waste during changeovers. This is a change from the practice that has been used in many plants since the mid-eighties. At that time, when many assembly plant paint shops were re-built with automated robotic paint shops, they started doing single shot jobs, often switching colors between each body. The new equipment allowed this flexibility so that car makers could build cars according to the orders as they came in from dealers. It was part of the whole move to just-in-time manufacturing. Of course each color change means blowing out the sprayers before the next body goes through which meant a lot of wasted paint and water. [/quote]

dmkozak
Posts: 70
Joined: Mon Mar 19, 2007 9:59 am

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Yes, Ben, you are absolutely correct in that GM does spray their trucks. Actually, most trucks are sprayed, so more paint can be applied to the bed than the rest of the vehicle. And, because GM's trucks are built in some of their oldest plants.

Yes certain newer small plants in Europe went to spraying for environmental reasons. But, the environmental benefits were found to not be as great as originally thought.

P.S. Your electrostatic example futher supports the difficulty in spraying. Porsche began electrostatically charging the paint and the body back around 1970. They found spraying really did not work because it is very difficult to control electrostatically charged paint in the air. I imagine today's clean rooms make this easier. But, it is still difficult.

When manufacturers went to water based paint for environmental reason about 15-20 years, the thought was water based paints would be easier on spraying equipment and easier to clean and change colors. So, many manufacturers built spray facilities, which are still in use today. But, spraying has proven to not be the best way to electrostatically apply water based paint.

Your batch painting description in the Nissan quote follows what VW began in their South American plants about 12 years ago. They would make one color at a time. Sometimes this would be a 2 day run. Sometimes, a whole week. If you wanted a less popular color, you would have to wait longer until the production schedule backed up enough orders of that color to make it worthwhile to change to that color. And, since they only offered a handful of colors, this was not a problem. The silver and black paint shops never changed colors because these were so popular.

smark
Posts: 28
Joined: Fri Oct 05, 2007 4:48 am
Car: 2008 Infiniti G37S & 1993 Lexus SC300

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UX149 wrote:Yes, the G37 definitely has an orange peel finish.
No it doesn't. I have a G37S Blue Slate that definitely does not have an "orange peel" finish. I also doubt that the BWM does, either. The only place I have ever seen such a finish on a car is on the rocker panels - unless I don't understand what "orange peel" finish is.

Update - Upon further investigation of the subject, I think I see in the G37 finish what might be considered to be "orange peel." However, I don' think it significant and it's hardly noticeable.

Modified by smark at 11:02 AM 10/19/2007
Modified by smark at 7:12 AM 10/29/2007

Ben98gs
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dmkozak wrote:Yes, Ben, you are absolutely correct in that GM does spray their trucks. Actually, most trucks are sprayed, so more paint can be applied to the bed than the rest of the vehicle. And, because GM's trucks are built in some of their oldest plants.
While that might be somewhat true, the video shown is to educate on the process and no where do they mention that they add extra paint. In fact you do not want to add "extra/more" paint by spraying as you will get runs. And I know for a fact it is not feasible in both time and money to send the truck back through. You cannot send a truck back into paint to add paint to the bed of the truck without masking off the cab of the truck... They would have to repaint the whole truck. I was surprised to learn how they do the two-tone, in which they do respray the whole truck, but I know for a fact that you are in error talking about extra paint in the truck beds. While in a common sense approach it would make sense of why they would, it just does not happen...

Quote »Yes certain newer small plants in Europe went to spraying for environmental reasons. But, the environmental benefits were found to not be as great as originally thought.[/quote]Spraying is TONS more environmentally friendly than "dipping tanks". Think about it for a second. You have to have 100,000 gallons of "paint/primer/phosphate solution" or whatever in the dipping tanks. You then have to dispose of this after you switch. Also think of anytime that it would get contaminated for some reason, you would then have to swap out that 100,000 gallons and clean the whole dipping tank and refill. This is again, both HIGHLY not environmentally friendly nor economically feasible.

Quote »P.S. Your electrostatic example futher supports the difficulty in spraying. Porsche began electrostatically charging the paint and the body back around 1970. They found spraying really did not work because it is very difficult to control electrostatically charged paint in the air. I imagine today's clean rooms make this easier. But, it is still difficult.[/quote]Do you not understand what electrostatically charging painting is doing? Sure maybe in the '70s they had problems, but this is the most widely used way to paint mass produced cars in the world. Every manufacturer does this. They do it because of the OPPOSITE of what you claim. It is TONS easier and cleaner to paint electrostatically. The whole point of the process is that the opposite charges of the paint and body cause the paint to STICK to the body/panel and be DRAWN TO the body/panel being painted. What does this mean? This means that less paint is wasted. Which is more environmentally friendly (going back to the above argument from you). You do not have to "control" the paint in the air as the physics behind this process tells you (and the reason they do it) that the paint particles will be attracted to the body panels.

Quote »When manufacturers went to water based paint for environmental reason about 15-20 years, the thought was water based paints would be easier on spraying equipment and easier to clean and change colors. So, many manufacturers built spray facilities, which are still in use today. But, spraying has proven to not be the best way to electrostatically apply water based paint.[/quote]I have no argument there as this exceeds my knowledge, but I will say that you are correct in your saying "many manufacturers built spray facilities, which are still in use today".... Hmmm... Let us go back to your VERY first post... You said, "I have found complaints of factory orange peel to be quite confusing for the past 15 - 20 years, because all manufacturers switched to dipping cars (not spraying them) and using water based paints." Hmmmm... Really interesting... In your first post you mention that ALL manufacturers now dip cars. But yet you just told us that many manufacturers still spray and have spray facilities. But the whole water based vs other paints I do not really have any knowledge on. Unlike you though I am willing to admit it.

Quote »Your batch painting description in the Nissan quote follows what VW began in their South American plants about 12 years ago. They would make one color at a time. Sometimes this would be a 2 day run. Sometimes, a whole week. If you wanted a less popular color, you would have to wait longer until the production schedule backed up enough orders of that color to make it worthwhile to change to that color. And, since they only offered a handful of colors, this was not a problem. The silver and black paint shops never changed colors because these were so popular.[/quote]Cannot argue with that... completely factual, but it only supports my argument... Not yours... Is that a "tail between the legs response"???

In closing, you were harsh in your comments to the OP, but now your response to me is somewhat more docile. You are still wrong in the "painting by dipping"... I provided factual links to three manufacturers, GM, BMW (the car in question) and Infiniti (the car you own and I guess somewhat in question by the OP as well). You have yet to provide a SINGLE link to ANY manufacturer talking about how the base/color coat of the paint is dipped and not sprayed.

While I agree that the cleaning/etching and primer layers might be dipped, there is no way that any manufacturer can mass produce cars of various colors by dipping each individual color. Just admit you are wrong... It is alright, I have learned from my mistakes and admit to them in the past.

Where were your 35 years in the auto design and development industry??? Are you retired now??? Because if not, and your knowledge about the paint process that you claim to know so well is so far off... I want to avoid buying anything from the company that you work for.

Ben98gs
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smark wrote:The only place I have ever seen such a finish on a car is on the rocker panels - unless I don't understand what "orange peel" finish is.
Some cars have orange peel worse then others.. And you are correct, it is car dependent. I have seen some cars of the same model that one looks great and the other has tons of peel, sound like you got a good one.

As for the rocker panels, I cannot say this about EVERY car, but I know a lot of manufacturers put a special "rubberized compound" on the bottom of the rocker panels before paint. The point of this is to help with rock chips and "sand blasting" from debris. The rubberized compound does not go on as smooth and you will DEFINITELY see more "orange peel" here. I know that Mazda has definitely used it, as my RX-7's (I have owned 5) and my RX-8 (that I currently own) both have this. The RX-8 does not show it as bad, but you can see a defined line on the FD RX-7 of where this compound starts.

As I said before, I do not know which manufacturers might do this, but that could be why you see it down on the rocker panels more on certain cars.

dmkozak
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Ben98gs wrote: I provided factual links to three manufacturers, GM, BMW (the car in question) and Infiniti (the car you own and I guess somewhat in question by the OP as well). You have yet to provide a SINGLE link to ANY manufacturer talking about how the base/color coat of the paint is dipped and not sprayed.
Correct. I do not have any links. I have eyes. My knowledge is gained from having physically witnessed various paint processes, not from surfing.

dmkozak
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Ben98gs wrote: manufacturers put a special "rubberized compound" on the bottom of the rocker panels before paint. The point of this is to help with rock chips and "sand blasting" from debris. The rubberized compound does not go on as smooth and you will DEFINITELY see more "orange peel" here.
Rubber is a "natural" product. There are some synthesized rubbers made from petroleum base stock. However, neither is physically compatible with water based paint. The "look" you are describing is not rubber or synthesized rubber. It is actually different compounded water based paint.

Ben98gs
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dmkozak wrote:
Rubber is a "natural" product. There are some synthesized rubbers made from petroleum base stock. However, neither is physically compatible with water based paint. The "look" you are describing is not rubber or synthesized rubber. It is actually different compounded water based paint.
Thus the quotation marks... I do not know the exact chemical compound of the stuff (which you must since you know everything and watched the process ). If you have ever sanded the stuff down you will know it sands like a rubber substance. From my personal experience with the stuff (trying to prep cars for paint and get rid of that stuff since it does not help when trying to obtain a showcar finish), it is a pain and for my lack of exact knowledge on the make up called it a "rubberized compound" as it will give people a good idea of what the stuff is like. If I said it was disulphilicarbonitraginated hydroxysodiumphosphate that would not help anyone in understanding the properties of the substance.

I do think you might want to get you glasses checked though if you saw cars being "dipped" in a base/color coat paint. The only time they are dipped is in cleaning solutions (usually clear in color) and primers (usually a whitish/grayish color). You can continue to believe whatever you want, but maybe you should ask to tour the paint facility of whatever plant/product you helped with "automotive design". I too have PERSONALLY walked through assembly plants, and while all were GM, they also all sprayed the base/color coat on the cars (as well as the clear coat). The plants I have toured includes, trucks, family cars, sports cars, etc and again all SPRAY the cars.

But what do I know, I dont have 35 years experience in BS

dseag2
Posts: 30
Joined: Mon Oct 15, 2007 8:40 am
Car: 2008 M35 Sport/Advanced Tech, 2007 FX35 Sport, Tech

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Sounds like orange peel seems to vary from color to color, but my Amethyst Graphite G37 definitely has orange peel in the paint. It is mostly in the rear quarter panels. My FX35 and M35 both have smoother finishes.

Still love the G37.

dmkozak
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Joined: Mon Mar 19, 2007 9:59 am

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Ben98gs wrote: But what do I know, I dont have 35 years experience in BS
Hey, don't shortchange yourself. You know plenty. At a minimum, you know you are always right.


rob51l
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It is clear that Ben at least knows that an orange peel finish/appearance actually exists (as do most people who look closely at their cars). Why don't you just come down from your perch (or take your head out of a dip tank ) and admit the obvious. I was just wanting to see if the G 37 had a finish similar to a BMW. It obviously does. Not a big deal. I would like to know what kind of cars you painted so I can avoid them. Incidently, I originally did appreciate your comments, but I now find them to be without merit.

Ben98gs
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dmkozak wrote:At a minimum, you know you are always right.
No, I just know when to admit when I am wrong (which you have not learned yet obviously).

dseag2
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rob51l wrote:It is clear that Ben at least knows that an orange peel finish/appearance actually exists (as do most people who look closely at their cars). Why don't you just come down from your perch (or take your head out of a dip tank ) and admit the obvious. I was just wanting to see if the G 37 had a finish similar to a BMW. It obviously does. Not a big deal. I would like to know what kind of cars you painted so I can avoid them. Incidently, I originally did appreciate your comments, but I now find them to be without merit.
Well, at least you got your answer. I've seen very few cars at a $40k price point that don't have some minor degree of "orange peel". I don't remember the SC430 I traded for my G37 having any imperfections in the paint, but I would expect that from a $60k+ Lexus. My '04 Acura TL (Anthracite) definitely had orange peel.

Anyone who denies orange peel still exists in today's vehicles has his head up his paint can.


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